He is one of the characters that will be controllable by the player during the quest, armed with a , , incendiary grenades, and deployable Blunt barricades.
A Tusk Firbolg crashes after being knocked out by a Sentient fighter, and Kahl picks up a from a Lancer from the crashed Firbolg. Vay Hek orders Kahl to regroup at his beacon. When he arrives at the beacon, a Tusk Bolkor crashes right in front of him, then a Tusk Dargyn gets shot out of the sky and crashes. Kahl goes to help the Dargyn Pilot, fighting past several Sentients, but the Pilot is already dead when he arrives. Kahl then asks what his mission is now.
Vay Hek tells Kahl that there is no mission as even going near the Condrix would only get him eaten alive, but Kahl has an idea: to feed the Condrix a bomb. Vay Hek agrees with his idea, and orders Kahl to hurry and find an explosive with a high enough yield to destroy the Condrix. Kahl heads to a mining camp to retrieve the "Big Bomb," when he spots Sentient Searches, and successfully sneaks past the Searches. He then enters a tent that has said bomb, picks it up and hesitates, then decides to sacrifice himself for the Queens. He exits the tent when he is blown away by an exploding Tusk Thumper.
Kahl wakes up and takes off his mask, but then realizes that a Sentient is killing nearby Grineer Lancers and will soon come and kill him too. He quickly looks around and notices a fallen , crawls up to the body and grabs its , shooting and killing the Sentient just in time. He stands up, spits on the Rhino's body out of disdain for the Tenno, and heads to the Condrix to "feed" it the explosive. He reaches the Condrix, collapses from exhaustion, and then activates the bomb while declaring that this is for his Brothers.
Kahl is awoken by a red light, and realizes that the bomb didn't detonate and he is somehow still alive. Kahl looks up, and to his horror, Erra was standing in front of him, telling him to not be afraid. The events that follow are currently unknown.
- Kahl-175 was first revealed in the Gameplay Trailer for The New War at TennoCon 2021. He is one of three known playable characters during the quest, along with Veso and Teshin.